Date: Sun, 25 Aug 2019 20:29:50 +0000 (UTC) From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-vendor@freebsd.org Subject: svn commit: r351489 - in vendor/lldb/dist/utils: . TableGen Message-ID: <201908252029.x7PKTomD064815@repo.freebsd.org>
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Author: dim Date: Sun Aug 25 20:29:50 2019 New Revision: 351489 URL: https://svnweb.freebsd.org/changeset/base/351489 Log: Import missed sources for lldb-specific TableGen tool. Added: vendor/lldb/dist/utils/ vendor/lldb/dist/utils/TableGen/ vendor/lldb/dist/utils/TableGen/LLDBOptionDefEmitter.cpp vendor/lldb/dist/utils/TableGen/LLDBTableGen.cpp vendor/lldb/dist/utils/TableGen/LLDBTableGenBackends.h Added: vendor/lldb/dist/utils/TableGen/LLDBOptionDefEmitter.cpp ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/lldb/dist/utils/TableGen/LLDBOptionDefEmitter.cpp Sun Aug 25 20:29:50 2019 (r351489) @@ -0,0 +1,151 @@ +//===- TableGen.cpp - Top-Level TableGen implementation for Clang ---------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// These tablegen backends emits LLDB's OptionDefinition values for different +// LLDB commands. +// +//===----------------------------------------------------------------------===// + +#include "LLDBTableGenBackends.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/TableGen/Record.h" +#include "llvm/TableGen/StringMatcher.h" +#include "llvm/TableGen/TableGenBackend.h" +#include <map> +#include <vector> + +using namespace llvm; + +/// Map of command names to their associated records. Also makes sure our +/// commands are sorted in a deterministic way. +typedef std::map<std::string, std::vector<Record *>> RecordsByCommand; + +/// Groups all records by their command. +static RecordsByCommand getCommandList(std::vector<Record *> Options) { + RecordsByCommand result; + for (Record *Option : Options) + result[Option->getValueAsString("Command").str()].push_back(Option); + return result; +} + +static void emitOption(Record *Option, raw_ostream &OS) { + OS << " {"; + + // List of option groups this option is in. + std::vector<std::string> GroupsArg; + + if (Option->getValue("Groups")) { + // The user specified a list of groups. + auto Groups = Option->getValueAsListOfInts("Groups"); + for (int Group : Groups) + GroupsArg.push_back("LLDB_OPT_SET_" + std::to_string(Group)); + } else if (Option->getValue("GroupStart")) { + // The user specified a range of groups (with potentially only one element). + int GroupStart = Option->getValueAsInt("GroupStart"); + int GroupEnd = Option->getValueAsInt("GroupEnd"); + for (int i = GroupStart; i <= GroupEnd; ++i) + GroupsArg.push_back("LLDB_OPT_SET_" + std::to_string(i)); + } + + // If we have any groups, we merge them. Otherwise we move this option into + // the all group. + if (GroupsArg.empty()) + OS << "LLDB_OPT_SET_ALL"; + else + OS << llvm::join(GroupsArg.begin(), GroupsArg.end(), " | "); + + OS << ", "; + + // Check if this option is required. + OS << (Option->getValue("Required") ? "true" : "false"); + + // Add the full and short name for this option. + OS << ", \"" << Option->getValueAsString("FullName") << "\", "; + OS << '\'' << Option->getValueAsString("ShortName") << "'"; + + auto ArgType = Option->getValue("ArgType"); + bool IsOptionalArg = Option->getValue("OptionalArg") != nullptr; + + // Decide if we have either an option, required or no argument for this + // option. + OS << ", OptionParser::"; + if (ArgType) { + if (IsOptionalArg) + OS << "eOptionalArgument"; + else + OS << "eRequiredArgument"; + } else + OS << "eNoArgument"; + OS << ", nullptr, "; + + if (Option->getValue("ArgEnum")) + OS << Option->getValueAsString("ArgEnum"); + else + OS << "{}"; + OS << ", "; + + // Read the tab completions we offer for this option (if there are any) + if (Option->getValue("Completions")) { + auto Completions = Option->getValueAsListOfStrings("Completions"); + std::vector<std::string> CompletionArgs; + for (llvm::StringRef Completion : Completions) + CompletionArgs.push_back("CommandCompletions::e" + Completion.str() + + "Completion"); + + OS << llvm::join(CompletionArgs.begin(), CompletionArgs.end(), " | "); + } else { + OS << "CommandCompletions::eNoCompletion"; + } + + // Add the argument type. + OS << ", eArgType"; + if (ArgType) { + OS << ArgType->getValue()->getAsUnquotedString(); + } else + OS << "None"; + OS << ", "; + + // Add the description if there is any. + if (auto D = Option->getValue("Description")) + OS << D->getValue()->getAsString(); + else + OS << "\"\""; + OS << "},\n"; +} + +/// Emits all option initializers to the raw_ostream. +static void emitOptions(std::string Command, std::vector<Record *> Option, + raw_ostream &OS) { + // Generate the macro that the user needs to define before including the + // *.inc file. + std::string NeededMacro = "LLDB_OPTIONS_" + Command; + std::replace(NeededMacro.begin(), NeededMacro.end(), ' ', '_'); + + // All options are in one file, so we need put them behind macros and ask the + // user to define the macro for the options that are needed. + OS << "// Options for " << Command << "\n"; + OS << "#ifdef " << NeededMacro << "\n"; + for (Record *R : Option) + emitOption(R, OS); + // We undefine the macro for the user like Clang's include files are doing it. + OS << "#undef " << NeededMacro << "\n"; + OS << "#endif // " << Command << " command\n\n"; +} + +void lldb_private::EmitOptionDefs(RecordKeeper &Records, raw_ostream &OS) { + + std::vector<Record *> Options = Records.getAllDerivedDefinitions("Option"); + + emitSourceFileHeader("Options for LLDB command line commands.", OS); + + RecordsByCommand ByCommand = getCommandList(Options); + + for (auto &CommandRecordPair : ByCommand) { + emitOptions(CommandRecordPair.first, CommandRecordPair.second, OS); + } +} Added: vendor/lldb/dist/utils/TableGen/LLDBTableGen.cpp ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/lldb/dist/utils/TableGen/LLDBTableGen.cpp Sun Aug 25 20:29:50 2019 (r351489) @@ -0,0 +1,71 @@ +//===- TableGen.cpp - Top-Level TableGen implementation for Clang ---------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file contains the main function for Clang's TableGen. +// +//===----------------------------------------------------------------------===// + +#include "LLDBTableGenBackends.h" // Declares all backends. +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/PrettyStackTrace.h" +#include "llvm/Support/Signals.h" +#include "llvm/TableGen/Error.h" +#include "llvm/TableGen/Main.h" +#include "llvm/TableGen/Record.h" + +using namespace llvm; +using namespace lldb_private; + +enum ActionType { + PrintRecords, + DumpJSON, + GenOptionDefs, +}; + +static cl::opt<ActionType> + Action(cl::desc("Action to perform:"), + cl::values(clEnumValN(PrintRecords, "print-records", + "Print all records to stdout (default)"), + clEnumValN(DumpJSON, "dump-json", + "Dump all records as machine-readable JSON"), + clEnumValN(GenOptionDefs, "gen-lldb-option-defs", + "Generate clang attribute clases"))); + +static bool LLDBTableGenMain(raw_ostream &OS, RecordKeeper &Records) { + switch (Action) { + case PrintRecords: + OS << Records; // No argument, dump all contents + break; + case DumpJSON: + EmitJSON(Records, OS); + break; + case GenOptionDefs: + EmitOptionDefs(Records, OS); + break; + } + return false; +} + +int main(int argc, char **argv) { + sys::PrintStackTraceOnErrorSignal(argv[0]); + PrettyStackTraceProgram X(argc, argv); + cl::ParseCommandLineOptions(argc, argv); + + llvm_shutdown_obj Y; + + return TableGenMain(argv[0], &LLDBTableGenMain); +} + +#ifdef __has_feature +#if __has_feature(address_sanitizer) +#include <sanitizer/lsan_interface.h> +// Disable LeakSanitizer for this binary as it has too many leaks that are not +// very interesting to fix. See compiler-rt/include/sanitizer/lsan_interface.h . +int __lsan_is_turned_off() { return 1; } +#endif // __has_feature(address_sanitizer) +#endif // defined(__has_feature) Added: vendor/lldb/dist/utils/TableGen/LLDBTableGenBackends.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/lldb/dist/utils/TableGen/LLDBTableGenBackends.h Sun Aug 25 20:29:50 2019 (r351489) @@ -0,0 +1,34 @@ +//===- TableGen.cpp - Top-Level TableGen implementation for Clang ---------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file contains the declarations for all of the LLDB TableGen +// backends. A "TableGen backend" is just a function. See +// "$LLVM_ROOT/utils/TableGen/TableGenBackends.h" for more info. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LLDB_UTILS_TABLEGEN_TABLEGENBACKENDS_H +#define LLVM_LLDB_UTILS_TABLEGEN_TABLEGENBACKENDS_H + +#include <string> + +namespace llvm { +class raw_ostream; +class RecordKeeper; +} // namespace llvm + +using llvm::raw_ostream; +using llvm::RecordKeeper; + +namespace lldb_private { + +void EmitOptionDefs(RecordKeeper &RK, raw_ostream &OS); + +} // namespace lldb_private + +#endif
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